<template>
  <div class="wrapper">
    <div id="building"
         style="margin: 200px auto; background-color: #fff; width: 350px; height: 300px; padding: 20px; border-radius: 10px">
      <div style="margin: 20px 0; text-align: center;font-size: 24px"><b>登 录</b></div>
      <el-form :model="user" :rules="rules" ref="ruleForm">
        <el-form-item prop="userName">
          <el-input size="medium" style="margin: 10px 0" prefix-icon="el-icon-user" v-model="user.userName"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input size="medium" style="margin: 10px 0" prefix-icon="el-icon-lock" show-password
                    v-model="user.password"></el-input>
        </el-form-item>
        <el-form-item style="margin: 10px 0; text-align: right">
          <el-button type="primary" size="small" :loading="loading" autocomplete="off" @click="login">
            <span v-if="!loading">登 录</span>
            <span v-else>登 录 中...</span>
          </el-button>
          <el-button type="warning" size="small" autocomplete="off" @click="$router.push('/register')">注 册</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import {setRoutes} from "@/router";

export default {
  name: "Login",
  data() {
    return {
      user: {},
      loading: false,
      rules: {
        userName: [
          {required: true, message: '请输入用户名称', trigger: 'blur'},
          {min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
          {min: 3, max: 20, message: '长度在 3 到 20 个字符', trigger: 'blur'}
        ]
      }
    }
  },
  methods: {
    login() {
      this.$refs["ruleForm"].validate((valid) => {
        if (valid) {
          this.loading = true;
          this.request.post("/user/login", this.user).then(res => {
            if (res.code === 200) {
              // 存储用户信息
              localStorage.setItem("user", JSON.stringify(res.data));
              localStorage.setItem("menus", JSON.stringify(res.data.menus));
              // 动态设置当前用户的路由
              setRoutes();
              this.$router.push("/");
              this.$message.success("登录成功！");
              this.loading = false;
            } else {
              this.$message.error(res.message);
            }
          })
        }
      });
    }
  }
}
</script>

<style>
.wrapper {
  /*渐变的背景色*/
  /*height: 100vh;
  background-image: linear-gradient(to bottom right, #FC466B, #3F5EF8);
  overflow: hidden;*/
  background: url("../assets/login-background.jpg");
  width: 100%;
  height: 100%;
  position: fixed;
  background-size: 100% 100%;
}

#building {
  /*设置透明度，0为完全透明，1为不透明*/
  opacity: 0.75;
}
</style>
